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Essential Angular

You're reading from   Essential Angular Fast paced guide to Front-end web development with Angular

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Product type Book
Published in May 2017
Publisher Packt
ISBN-13 9781788293761
Pages 108 pages
Edition 1st Edition
Languages
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Authors (3):
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Narwhal Technologies Inc Narwhal Technologies Inc
Author Profile Icon Narwhal Technologies Inc
Narwhal Technologies Inc
Jeff Cross Jeff Cross
Author Profile Icon Jeff Cross
Jeff Cross
Victor Savkin Victor Savkin
Author Profile Icon Victor Savkin
Victor Savkin
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Toc

Providers

A component can configure dependency injection by defining the list of providers the component and its children may inject.

@Component({
selector: 'conf-app',
providers: [Logger]
})
class AppCmp { //... }

@Component({
...
})
class TalksCmp {
constructor(logger:Logger) { //... }
}

In this example, we have the logger service declared in the app component, which makes them available in the whole application. The talks component injects the logger service. I will cover dependency injection in detail in Chapter 5, Dependency Injection. For now, just remember that components can configure dependency injection.

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